I don't know if you have a build thread setup already, and if you do I can continue this there, but I'll just drop one thing: You may be working against yourself by having a wet/dry component with bioballs. If you intend to have a DSB and LR/LS in the display tank, you should have ample biological filtration. Bioballs are fine at converting NH3->NO4->NO3, but if you don't stay on top of cleaning out the bioballs (removing them and rinsing out detritus with RO or NSW), in addition to having good mechanical filtration prior to where they enter the bioballs, they have a tendency to have longterm nitrate creep. At best they are a redundancy to your system, at worst they are a nitrate problem.
Ultimately this kind of all hinges on what you intend to keep, so if you have a build thread, point me there and we can chat in a more appropriate place.